public class HomeWork01146 {
    public static void main(String[] args) {
        int score = 85;
        if (score >= 90) {
            System.out.println("Grade: A+");
        }
        if (score >= 80) {
            System.out.println("Grade: A");
        }
        if (score >= 70) {
            System.out.println("Grade: B");
        }
        if (score >= 60) {
            System.out.println("Grade: C");
        }
        if (score < 60) {
            System.out.println("Grade: F");
            //第一个if判断
        }

    }
}

